The Balabins and Karandyshevs have sons growing up. Lena and Masha often send their fathers for walks with their children. During one of these walks, Sanya gets into a shooting fight, preventing the abduction of a child. Meanwhile, the mysterious Angelika arrives in the city, looking for Sister Ornella. Her appearance is accompanied by a series of deaths: people involved in the mystery of Ornella are dying. And Angelika herself calls Varvara Postysheva and introduces herself as her own sister.